Taylor Swift is forever plaid in her adorable ensemble!

Smiling as she returned to her New York City apartment, the "Shake It Off" singer looks like she's enjoying her first week of being 25.

Wearing a plaid jacket, knit cap and warm stockings, the lanky star some good at looking oh-so-cool while keeping warm!

This happy-go-lucky scene is a far cry from from Tay's wild birthday bash last Friday, featuring Jay Z, Beyonce, Justin Timberlake, Haim and Selena Gomez, crying in the corner about her failed relationship with Justin Bieber.